Hot-water heating system.



' No. 685,734. Patenfed Oct. 29, I901.

T. c. PURVES. HOT WATER'HEATING SYSTEM);

(Application filed Jan. 22, 1900.)

j (No Model.)

' "i mwmow W'mwsszs.

3P bottom. The connected union-chambers atthe accompanying drawings, and to the let:

I convenienceof description m'aybe called the is connected at one endby a short section of pipe b tothe steam-valve O, by means of which communicates therewithfiseontrolled. 4o

' I per bends of the sections of the radiatorsare connected so as to establish a free circulation between them or not. screwing or otherwise securing into the end of the section of pipe I) ablind-pipe or .tubu-. larsteam chamber E,'wh ich extends tovery laterally from leader. D', which is connected Lagrange, in the county of Cookand State heating system.

one substantially like it, into a hot-water UNiT'ED STATES PATENT 01mins.

THOMAS c. ruavns, or-LAeaAneE, IIJLINOIS.

HOT-,WATER HEATING SYSTEM.

srncrnrcnrron formingpart of Letters Patent No. 685,734, dated October 29, 1901. Appllcatlonfiled January 22, 1900. Serial ITO-2,296. N -IMdBl- To all whom it may concern:

I Be it known that I, THOMAS C. PURVES, a citizen of the United States, and a resident of of Illinois, have invented certain new and. useful Improvements in Hot-Water Heating Systems, of which the following is a fnll,'clear, and exact description, reference being bad to,

tears of reference marked thereon.

The object of my invention is to obtain the able addition to the radiators without'changthem to be filled with water and sealed and so that the steam of 'the distributing system can-be utilized to heat said water, substantially as hereinafter'fully described, and par-- ticularly pointed out in the claims.

In' thedrawings, Figure 1 is a longitudinal central section through my invention; Fig. 2- is a vertical transverse section thereof, taken on dotted line as m',-Fig. ,1, looking in the direction indicated by-the arrows.

In the drawings, A representsa three-way radiator, the sections of .which are suitably connected by means of nipples a a, whichnnite the union-chambersthereof at top and the bottom of the radiator form what for 5min cl1amber,B.' This'cha'mber B extends from one end of the radiator to the other and the steam-pressure from the leader D, which The preceding explanation is a brief description of a connected radiator of a modern Now myinvention particularly-relates to converting such a system, or

heating system, no matter whether the up- This is effected by near the'oppositeend of the radiator, but

preferablyv is notfiat't-ached thereto and has said unattached end closed. The reason for ,ofthe outer atmosphere, and would strain so at its joints with the said radiator as to either loosen the sections thereofor-wrench its con nections' with the same in snch'manner as to render them' leaky. Qutside chamber E the space within the radiator is filled with water and theradiator is sealed. -When thesteam is turned into chamber E, it soon heats the water and creates a heating apparatus which provides a pleasanter and more agreeable heat than if steam'were used and generates a greater. heat than the present hot-Water heating systems longer.

When steam is turned into chamber E, the airin the same must'find an escape. This could be provided for by employing a yent which would project either longitudinally or laterally from said chamber through the side or end walls of the radiator. In view oi the The steam-chamber and holds its heatunuch I fact, however, that'the steam-chamber will expandconsiderabl y more than the surrounding' walls or theradiator, as hereinbefore stated, the joints or connections of the said vent with the steam-chamber andthe wallof the-radiator through which it extends would becomestrained and leaky. I avoid this difiiculty by means of alongitudinttl vent-pipe e .of comparatively small diameter, wh ch extends-from near the closed end ofsaid steamchamber into the pipe b, wher,e"the*sam'e is turned vertically and extends out throughthe same-and has securedto its outer end an antomaticvent-valve d of any suitable constrnction. .In this way the-unequal expansion of the steam-chamber and the radiator. can have no'eifect upon the joints of the air-ventio make them either leaky or defective.

It is desirable-to always keep a'small quanwater in the radiator from freezing when valve 0 is closed." Itherefore have provided a b'y-pass, consisting of a pipe f, extending by means of a coupling g to a valve-controlled pipe h, thatis connected with the pipe I) between the valve. 0 and the steam-chamber. Thus when the valve 0 is turned oft the valve-controlled by-pass pipe can be opened sufficient to permit a smalljet of steam to enter the steam-chamber. When the valve 0 is open, the by-pass pipe may be closed. If desired, the pipe It may have the valve omitted, and thus allow of a small current of steam' entering chamber E therethrough at all times. I can fill the radiators with water by setting them on end and pouring water into them through the opening into which pipe I) is screwed and then insert the chamber E and screw the pipe 12 home. This might prove a slow. and expensive way of doing when a system having many radiators was concerned. I have therefore provided" for the filling of the radiators from the boiler by simply making the coupling connecting pipesf'andh a T-coupling and connecting the same by means of a valve-controlled drain-pipe k with the bottom of the main chamber of the radiator, about as shown. In this event I provide the top of one or more sections of the radiator with screw-closed openings K, which are opened when theradiators are being filled; so as to permit the escape of the air therein. To fill the radiators, the water is forced into the entire heating system and into the radiators through the pipes k until saidradiators are completely filled. The valve-controlled pipes 7a of the radiators are then closed and the entire-system drained down to the required level in the boiler. The steam is then turned on and controlled to heat :the water in the radiators in the manner hereinbefore fully explained. Should it be desired for any reason to empty the radiators, all thatneed he done-is to open the valve-controlled pipes in.

I- do not desire to be understood as limiting myimprovements to either hotwater or steam radiators of any particular design. So long as they possess a main chamber into which the steam-chambercan be projected they will answer the purposes of my invention; nor do I wish to be confined id the; employment of the steam by pass hereinbefore described nor it is'evident said pipe can be dispensed with and the radiators be filled either by placing them on end or by providing them with a Water-inlet at a suitable point at the top and a suitable drain at the bottom insteadtof filling them from the boiler hereinbetore explained. All such changes, as well as those of a mere mechanical character not involving a departure from the principle of my invention, which may be broadly stated to be the heating of a water-filled radiator by an inserted Steanrchamber connected with a steam-heating system.

What I claim as new is 1. The combination with a water filled sealed radiator of an independent steamchamber'inserted therein, one end of which extends beyond said radiator, a steam-valve .connected thereto, a leader connecting with said steam-valve and a valve-controlled bypass connecting said leader and chamber.

2. The combination with a waterfilled sealed radiator 01? an independent steamchamber inserted therein one end of which extends beyond said radiator, a steamwalve connected thereto, a leader connecting with said steam-valve, a by-pass connecting said leader and chamber, and-a drain-pipe 'connecting said radiator'with said leader.'.

sealed radiator .of an independent steamchamber insertedtherei-n, one endof which extends beyond said radiator, a steam-valve connected thereto, a leader connecting with said steam-valve,and a valvepontr'olled drainpipe connecting said radiator and leade're 4:. The combination with a waters-filled sealed radiator, of an independentsteam' chamber inserted therein one end of which tending longitudinally within said steam chamber from near the closed end to the exterior of the outer exten'de'd'end thereof, a steamvalve connected thereto, a leader connecting withsaid'steamrvalve, and a valvecontrolled drain-pipe connecting saidradiator and leader.

' THOMAS PURVES. 'Witness'es:

'- FRANK D. THoMAsoN,

the drain-pipe k, for while its use is preferred M. FRVIEL.

r 3. The combination with a water-filled 9'0 extends beyond said radiator a vent-pipe ex- 

